2944928861 has 6 divisors (see below), whose sum is σ = 3425733630. Its totient is φ = 2524224696.

The previous prime is 2944928837. The next prime is 2944928873. The reversal of 2944928861 is 1688294492.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1724823961 + 1220104900 = 41531^2 + 34930^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2944928861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2944928881) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30050246 + ... + 30050343.

It is an arithmetic number, because the mean of its divisors is an integer number (570955605).

Almost surely, 2^2944928861 is an apocalyptic number.

It is an amenable number.

2944928861 is a deficient number, since it is larger than the sum of its proper divisors (480804769).

2944928861 is an equidigital number, since it uses as much as digits as its factorization.

2944928861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60100603 (or 60100596 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 53.

The square root of 2944928861 is about 54267.1987576289. The cubic root of 2944928861 is about 1433.3698641432.

The spelling of 2944928861 in words is "two billion, nine hundred forty-four million, nine hundred twenty-eight thousand, eight hundred sixty-one".